Passive safety block

ABSTRACT

The present invention is a firearm safety block device that increases the needed pressure on a firearm trigger required to discharge the first shot. The invention consists of a block member mounted to the firearm and extended to prevent the movement of the firing mechanism. A substantial force great enough to break or shear the blocking member is required to operate the firing mechanism as needed to cause the firearm to discharge. A spent frangible bar may be renewed. When the firearm safety block is not applicable the block member may be removed.

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] Not applicable.

BACKGROND OF THE INVENTION

[0002] 1. Field Of Invention

[0003] The present invention relates to safety mechanisms for firearms and particularly to a passive firearm safety block.

[0004] 2. Discussion of Background

[0005] Accidental death and injury from firearms by both experienced adult handlers and children numbers in the thousands each year. Where a firearm is kept for personal protection of a household; usually there are children resident and visitors, it is essential that the firearm is locked away or at least locked. By the nature of the firearm presence, the key must be kept usually in a hidden, but readily available. This is a place that can be discovered by curious children this, unfortunately, is the setting for the disaster that is repeated thousands of times annually. This invention is not intended to replace these locks, more it is to provide a last defense effort. The invention is to make a firearm unusable by children.

[0006] Firearms are often accidentally discharged by rough handling or by being dropped while being moved. Experienced and trained users while under stressful situation discharge their firearms hastily only when there is only a perceived need for extreme force. Several new firearms produced today reduce the possibility of accidental discharge of the firearm by increasing the finger pressure needed to fire the firearm.

SUMMARY OF THE INVENTION

[0007] The present invention is an inexpensive passive safety trigger block that can be both supplied by the firearm maker or added to firearms in service. Quick and easily remove and replace is yet another feature of invention. Safety is achieved by substantially increasing the amount of force necessary to pull the trigger the initially. Depending on needs, this force requirement would be increased from low pressure to such pressure that only a strong adult could pull the trigger. After the safety block is overcome the firearm will operate normally. The safety block is a block member blocking a firing mechanism and the trigger. This is block member may be sheared or bent to thereby permitting operation of the firing mechanism. The predictable amount force required to bend or shear the block member is reliably accomplished by its configuration and materials.

BRIEF DECRIPTION OF THE DRAWINGS

[0008] In the drawings,

[0009]FIG. 1 is a side view of a the block element, according to preferred embodiment of the present invention;

[0010]FIG. 2 is a left side view of a firearm having the safety block, according to preferred embodiment of the present invention;

[0011]FIG. 2A is a section view of a firearm having a safety block, according to a preferred embodiment of the present invention;

[0012]FIG. 2B is a section view of a firearm having a safety block that is by means overcome, according to a preferred embodiment of the present invention;

[0013]FIG. 3 is a section view of a firearm having a safety block, according to a yet another preferred embodiment of the present invention;

[0014]FIG. 3A is a section view of a firearm having a safety block, according to a preferred embodiment of the present invention;

[0015]FIG. 3B is a section view of a firearm having a safety block that is by means overcome, according to a preferred embodiment of the present invention;

[0016]FIG. 4 is a section view of a firearm having a safety block, according to a yet another preferred embodiment of the present invention;

[0017]FIG. 4A is a section view of a firearm having a safety block, according to a preferred embodiment of the present invention;

[0018]FIG. 4B is a section view of a firearm having a safety block that is by means overcome, according to a preferred embodiment of the present invention;

[0019]FIG. 5 is a left side view of a firearm having the safety block, according to a preferred embodiment of the present invention;

[0020]FIG. 5A is a section view of a firearm having a safety block, according to a preferred embodiment of the present invention;

[0021]FIG. 5B is a section view of a firearm having a safety block that is by means overcome, according to a preferred embodiment of the present invention;

[0022]FIG. 6 is a section view of a firearm having a safety block, according to a yet another preferred embodiment of the present invention;

[0023]FIG. 6A is a section view of a firearm having a safety block, according to a preferred embodiment of the present invention;

DETAILED DESRIPTION OF THE PRESENT INVENTION

[0024]FIG. 1 represents a version of the block member 30 having a leading end 34 followed by the frangible section 32 then on to a external threads 33 finished with a cap head 38 preferably with special torque features 36.

[0025]FIG. 2 represents a block member 30 of the present invention a safety block employed in a common firearm 90. The frame 10 has an extended trigger 40 having shape 42 with a hole 44 by means located orthogonal to the movement direction 60. Section FIG. 2A represents a section through frame 10 with trigger 40 free position. Frame 10 having an internal threaded hole 12 by means aligned to hole 44. block member 30 leading end 34 located in hole 44 is by means screwed into internal thread hole 12 located in frame 10 having clear hole 14. Illustrated in FIG. 2B a similar section now with the trigger 40 by substantial means pulled in direction of movement shown by arrow 60 thereby causing block member 30 to be bent of fractured at preferably at frangible section 32 whereby trigger safety is overcome.

[0026] Referring to FIG. 3 the present invention a safety block is represented in a common firearm 90 having a frame 10 with a block member 30 an extended trigger 40. Trigger 40 with a firing means having an envelope 46. Frame 10 having a hole 44 by means orthogonal to direction of trigger movement 60. FIG. 3A representing a section view of frame 10 with block member 30 leading end by means in near proximity 18 to a leading edge of trigger envelope 46. Frangible section 32 preferably with a securing means 33 positioned preferably between trigger 40 and frame 10. The trigger 40 is shown in a free position. FIG. 3B is a similar section showing frame 10 with a block member 30. Trigger 40 by substantial means pulled thereby moving leading edge 46 in direction 60 thereby overcoming the safety block by bending or breaking a frangible section 32 and displacing leading end 34.

[0027] Represented in FIG. 4 is yet another preferred embodiment of the present invention is a safety block employed in a common firearm 90 having a frame 10 with a trigger guard 70 circumscribing a trigger area 70 having an extended trigger 40 dispersed therein. Extended trigger 40 having a protrusion 50 with a surface 36 orthogonal to the movement 60. Trigger guard 70 having a lug 52 with an internal threaded hole 37 aligned proximally to surface 36 when the trigger is in the free position. block member 30 is by means screwed into internal threaded hole 37. FIG. 4A represents a section view of trigger guard 70 showing the trigger 40 in the free position with a frangible section 32 of the block member 30 preferably being located in gap 54 between protrusion 50 and lug 52. The frangible section 32 is shown with the first end 34. The following FIG. 4B represents a trigger guard 70 having a trigger 40 pulled by substantial means in the direction indicated by the arrow 60 thereby breaking or bending the block member 30 preferably at the frangible section 32. The passive firearm safety block is thereby overcome.

[0028] Represented in FIG. 5 is yet another preferred embodiment of the present invention is a safety block employed in a common firearm 90 having a frame 10 with a trigger guard 70 circumscribing a trigger area 72 with a extended trigger 40 dispersed therein. Stationary plate 80 with an internally threaded hole 37 located orthogonal to the movement 60 is by means retained on a rear portion of trigger guard 70. A Moving plate 81 is by means retained on the rear of the trigger 40 and has a hole 38 approximately aligned, with the trigger in free position, to internal threaded hole 37. Plate 81 is clamped between head 31 of block member 30 and stationary plate 80. FIG. 5A is a larger section view of trigger guard 70 showing trigger 40 in free position with moving plate 81 by means is retained, also stationary plate 80 is by means retained on the trigger guard 70. The external thread first end 34 of block member 30 is by means screwed into internal threaded hole 37 and frangible section 32 is located approximately at the joint area 39. FIG. 5B a section view of the trigger guard 70 with trigger 40 pulled by substantial means in direction 60. Frangible pin 30 sheared at frangible section 32 thereby overcoming the passive firearm safety block.

[0029]FIG. 6 represents the block member 30 of the present invention a safety block employed in a common Firearm 90. Trigger 40 operates by sliding in slot 14 in front side of handle 12 extending from main frame 10. An internally threaded 37 hole somewhat orthogonal to the direction of movement 60 is located in close proximate to handle 12. FIG. 6A represents a section view showing trigger 40 located in slot 14 in handle 12. First end 34 is followed by a frangible section 32 of a block member 30 is extending from trigger 40. Head 31 is by means has recess to permit entry into slot 14. FIG. 6B represents a section view of trigger 40 moved by substantial means in slot 14 in the direction shown by arrow 60. Thereby first end 34 impinges on handle 12 and is fractured at preferably at frangible section 32 whereby passive firearm safety block is overcome. 

What is clamed is:
 1. A firearm passive safety block comprising a firearm with frame and a firing mechanism therein and a block member, said firing mechanism having a aperture formed orthogonal to the plane of said movement; said block member comprised of a rod having leading or first end then a preferably frangible shank having external threaded portion under a cap on the second end, said cap having preferably unique features to torque said block member; said frame having a threaded aperture substantially aligned to said aperture, said first end of said rod slidably received therein said internal threaded aperture in said frame to engage said aperture in said firing mechanism whereby and is by means screwed to the said internal threaded aperture in the said frame; movement by means of said firing mechanism displaces said aperture in said firing mechanism thereby placers said block means, specifically said frangible shank, in shear and bending; said firearm passive safety block is achieved as considerable pressure must be exerted on said firing mechanism to preferably break said frangible shank permitting said firing mechanism to be moved causing to firearm to fire.
 2. A firearm passive safety block comprising a firearm with frame and a firing mechanism therein, said firing mechanism having a leading side said safety block comprising a block member; said block member comprised of a rod having leading or first end then a preferably frangible shank having external threaded portion under a cap on the second end, said cap having preferably unique features to torque said block member; said frame having a threaded aperture substantially aligned to said leading side; said first end of said block member slidably received therein said internal threaded aperture preferably proximal to the leading side of said firing mechanism then is by means screwed to the said internal threaded aperture in the said frame; movement by means of said firing mechanism and specifically said leading edge displaces said first end thereby placers said block member, specifically said frangible shank, in shear and bending; said firearm passive safety block is achieved as considerable pressure must be exerted on said firing mechanism to preferably break said frangible shank permitting said firing mechanism to be moved causing to firearm to fire.
 3. A combination firearm passive safety block, as described in claim 1, wherein said gun is a revolver pistol;
 4. A combination firearm passive safety block, as described in claim 1, wherein said gun is a automatic pistol;
 5. A combination firearm passive safety block, as described in claim 1, wherein said gun is a long arm;
 6. A combination firearm passive safety block, as described in claim 1, wherein said gun is a machine gun;
 7. A combination firearm passive safety block, as described in claim 1, wherein said block member is formed of metal;
 8. A combination firearm passive safety block, as described in claim 1, wherein said block member is formed of plastic;
 9. A firearm passive safety block comprising a firearm with frame, a firing mechanism therein and a block member, said frame having a trigger guard attached to said frame said trigger guard and said frame together circumscribing a trigger area; a trigger disposed within said trigger area, said trigger in operative connection with said firing mechanism; said block member comprised of a rod having leading or first end then a preferably frangible shank having external threaded portion under a cap on the second end, said cap having preferably unique features to torque said block member; said trigger back surface having a protrusion with a surface orthogonal to the movement of said trigger; said trigger guard rear having a lug protrusion having a threaded aperture by means proximal tangent said surface; said first end of said block member slidably received therein said threaded aperture; movement by means of said trigger and more specifically said protrusion impinges said first end of said thereby puts block member specifically said frangible shank, in shear and bending; said firearm passive safety block is achieved as considerable pressure must be exerted on said trigger to break or bend said frangible shank thereby operating said firing mechanism causing to firearm to fire.
 10. A firearm passive safety block comprising a firearm with frame, a firing mechanism therein and a block member, said frame having a trigger guard attached to said frame said trigger guard and said frame together circumscribing a trigger area; a trigger disposed within said trigger area, said trigger in operative connection with said firing mechanism; said block member comprised of a rod having external threaded leading or first end then a preferably frangible shank under a cap on the second end, said cap having preferably unique features to torque said block member; a transition plate by means retained on said trigger back surface, said plate having a threaded aperture orthogonal to movement of said trigger; a stationary plate, parallel to transition plate, is by means retained on the rear portion of said trigger guard, said stationary plate having a aperture substantially aligned to said threaded aperture; said trigger guard rear having a lug protrusion having a threaded aperture by means proximal tangent said surface; said first end of said block member slidably received therein said aperture an by means screwed into said threaded aperture thereby; movement by means of said trigger and more specifically said transition plate impinges said first end of said thereby puts block member specifically said frangible shank, in shear and bending; said firearm passive safety block is achieved as considerable pressure must be exerted on said trigger and more specifically said transition plate to break or bend said frangible shank thereby overcoming firearm passive safety block permitting operation of said firing mechanism causing to firearm to fire.
 11. A firearm passive safety block comprising a firearm with frame and a firing mechanism therein having an extended trigger with a block member; said block member comprised of a rod having leading or first end then a preferably frangible shank having external threaded portion under a cap on the second end, said cap having preferably unique features to torque said block member; said trigger having a threaded aperture proximally located to said edge and orthogonal to the movement of said trigger; said block member by means screwed to threaded aperture and said first end extending through said trigger; by substantial pressure said trigger is pulled causing said first end to be impinged on said edge; said firearm passive safety block is achieved as considerable pressure must be exerted on said trigger to preferably break said frangible shank permitting said firing mechanism to be moved causing to firearm to fire. 